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Get current batchfile directory
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System read-only variable %CD% keeps the path of the caller of the batch, not the batch file location.
You can get the name of the batch script itself as typed by the user with %0 (e.g. scripts\mybatch.bat). Parameter extensions can be applied to this so %~dp0 will return the D...
python generator “send” function purpose?
...t's useful, one of the best use cases I've seen is Twisted's @defer.inlineCallbacks. Essentially it allows you to write a function like this:
@defer.inlineCallbacks
def doStuff():
result = yield takesTwoSeconds()
nextResult = yield takesTenSeconds(result * 10)
defer.returnValue(nextResu...
What is the difference between ndarray and array in numpy?
...r are used.
If buffer is an object exposing the buffer interface, then all keywords are interpreted.
The example below gives a random array because we didn't assign buffer value:
np.ndarray(shape=(2,2), dtype=float, order='F', buffer=None)
array([[ -1.13698227e+002, 4.25087011e-303],
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What is a coroutine?
...ach other?
– tonix
Oct 15 '19 at 14:32
1
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Format JavaScript date as yyyy-mm-dd
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Really multiple variable declarations in the same statement? stackoverflow.com/questions/694102/…
– bhspencer
Aug 29 '15 at 15:00
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Passing variable number of arguments around
...I have a C function which takes a variable number of arguments: How can I call another function which expects a variable number of arguments from inside of it, passing all the arguments that got into the first function?
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Appending an element to the end of a list in Scala
...'s because you shouldn't do it (at least with an immutable list).
If you really really need to append an element to the end of a data structure and this data structure really really needs to be a list and this list really really has to be immutable then do eiher this:
(4 :: List(1,2,3).reverse).rev...
Multiple columns index when using the declarative ORM extension of sqlalchemy
...'table_A'
id = Column(Integer, primary_key=True)
a = Column(String(32), index=True)
b = Column(String(32), index=True)
if you'd like a composite index, again Table is present here as usual you just don't have to declare it, everything works the same (make sure you're on recent 0.6 or 0...
Why are all fields in an interface implicitly static and final?
I am just trying to understand why all fields defined in an Interface are implicitly static and final . The idea of keeping fields static makes sense to me as you can't have objects of an interface but why they are final (implicitly)?
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Uniq by object attribute in Ruby
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Do it on the database level:
YourModel.find(:all, :group => "status")
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